9/29/22 TEST: Systems and Scale

This test will assess your current understanding of Systems and Scale.   It WILL count toward your grade , and the data will provide insight on what needs to be readdressed in class.

The 3 rules about atoms:

1. Atoms last forever.

2. Atoms make up the mass of all materials.

3. Atoms are bonded to other atoms in molecules.

The 3 questions scientists ask about chemical reactions:

1. Where are molecules moving?

2. How are atoms in molecules being rearranged into new molecules?

3. What is happening to the energy?

You've got this!